# Math

Uh...Yea... Sorry about this, but I"m trying to study and I need someone to walk me through, missed a lot of school. fyi, when there's a / its under the entire string before it until you hit the inequality symbol.

Tony Bowled 135 and 145 in his first two games. Write and solve a compound inequality to find the possible values for a third game that would give him an average between 120 and 130, inclusive.

1. 120 <= 135+145+n/3<=145; 120<=n<=140

2. 135 <= 120+140+n/3<=145; 80<=n<=85

3. 120 <= 135+145+n/3<130; 80<n<110

4. 120 <= 135+145+n/3<=130; 80<=n<=110

1. 0
2. 19
asked by Jayme
1. according to your explanation,
#1 is
120 ≤ (135+145+n)/3 ≤ 145
120 ≤ (280 + n)/3 ≤ 145
times 3
360 ≤ 280 + n ≤ 435
subtract 280
80 ≤ n ≤ 155

do the others the same way

1. 0
posted by Reiny

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